Analysis of common problems in hydraulic station of four column hydraulic press

The abnormal flow of flow in the hydraulic station of four column hydraulic press refers to the 3 common scenes such as the lack of flow into the executing agency, the lack of flow of supply agencies, and the excessive flow of the executive agencies. So how should we deal with this problem?

⒈There is no flow in the hydraulic station of a four column hydraulic press

⑴  The solenoid of the reversing valve of the equipment above the hydraulic station is loose, and the coil is short circuited. This can replace the reversing valve directly, or it may be repaired.

⑵  The hydraulic oil in the hydraulic station is polluted and the spool is jammed. Convert hydraulic oil into clean and non contaminated hydraulic oil. A blocked valve can only be replaced or repaired.

⑶  The function slide valve of M and H has no reversing. Change them to the head.

⒉Low flow rate of hydraulic station of four column hydraulic press

The low flow rate of hydraulic stations is a common problem of unstable flow at hydraulic stations. There are many reasons for it.

⑴ Pressure relief valve or unloading valve that controls the flow of hydraulic oil pump in hydraulic station is too low. The pressure will be high.

⑵  The bypass control valve in the hydraulic station is not very tight. Either a replacement valve or a control circuit for the flow rate of the hydraulic station must be checked.

⑶ The volume power of the hydraulic pump is reduced. This can replace the hydraulic pump and drain the air in the hydraulic pump together.

⑷ The internal leakage of the hydraulic station is serious. This is mainly hydraulic pump station of the various parts of the hydraulic oil pump, hydraulic valves, tubing, motor, oil block, oil tank and so on without connection tight, together to replace the seal.

⑸ The normal adjustment of the variable displacement pump in the hydraulic station is invalid. Replace the hydraulic oil pump.

⑹ The loss of the pipeline in the hydraulic station is too large. This can replace the tubing of the big one and improve the pressure of the pump.

⒊High flow rate of hydraulic station

⑴ The flow control equipment of the hydraulic station is adjusted too high. This is just the opposite of it. If the tune is too high, turn it down.

⑵ The normal conditioning of the variable pump in the hydraulic station is invalid.  Hydraulic station planning is to show errors, which can only be replaced or repaired.

⑶ The type of the hydraulic pump and the motor speed are incorrect. Replace the hydraulic pump and the motor that the speed can reach.

To sum up, when the hydraulic actuator can not work normally, it is suggested that we look up the cause of the disease and eliminate the disease by the parameters of the flow.